No one responds right away because it is a call centre. They use a dialer with a mode called "prediction mode" it takes 5-10 seconds for their call to be connected to you once you answer (everyone in the server uses the same predictor given they are on the same study.)They just called my house for an online study on H1N1.My source of information is that i currently work at a call centre and have for the past year.Hope that helps.I'll get back to whether or not I actually receive an e-mail.

This number was on a postcard that was part of a mass mailing. It claims to have a package for you and when you call they answer "Rainbow" then ask for your phone number in order to find out "what the package is for you". Then she said someone had done a survey in the household (we NEVER do these) and said we could collect our "package" if we would only give them a little bit of our time for a presentation. That's a load of crap. Don't call them. It's a telemarketing scam.